Northrop Grumman Corp., Bethpage, New York, is being awarded an undefinitized modification to a previously awarded fixed-price-incentive-fee contract for the procurement of one additional E-2D Advanced Hawkeye low-rate initial production Lot 2 aircraft. The not-to-exceed price for the additional aircraft is $136 million. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.